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Metal borides, among many other compounds, have better performance at high temperature than metal carburides. As an example, titanium diboride (TiB2) The cermet product is more suitable for use in high temperature, high corrosive conditions.
The properties of titanium diboride both as structural materials and as functional materials

1. Structure materials. Due to its high strength, titanium boride can be used for tools, wire drawing films, sandblasting materials, and other hard tooling materials. It can also be added to composite materials.

2. Functional materials. It is useful to use titanium boride in functional materials because its resistivity is similar to pure iron. Titanium boride’s electrical properties can be used to create flexible PTC material.

There are many methods to prepare titanium diboride. These include the carbothermal method of reduction, the self-propagating method at high temperatures and synthesis, mechanochemical method, vaporization method, and ball milling.

Reduce carbothermic toxicity using a reduction method
The quality of the titanium diboride powder synthesized depends on the powder purity. This is achieved by using titanium and boron oxids as raw materials. Carbon black as the reducing agent. This process is widely used in industrial production. The powder obtained from this process has large particle sizes and high impurity levels.

Self-propagating heat synthesis (SHS).
In general, this method is to compress the raw material mixture that will be reacted and ignite one end of the resulting block. The reaction releases a huge amount of heat, which causes adjacent materials to react. Eventually a combustion waves spreading at speed v forms. As the combustion wave moves forward, the raw materials are transformed into the finished product. Because of the self purifying effect of the self propagating high-temperature synthesizing process, the obtained powder is easily sintered. External energy consumption is also low. With the use of other technical means and special techniques, it is possible to prepare dense titanium diboride directly.

Methode de Reaction Mécanochimique (MR).
The powder reactant is squished and sheared by the ball milling medium, causing it to be repeatedly deformed. The ball milling medium generates chemical energy through the violent friction. Comparing the two first methods of preparing titanium dioxide, the mechanochemical reactions method has advantages such as low synthesis temperatures, a wide range of raw material sources, and a low cost.

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